Why did Dimitri most likely get the flu? Vaccinations are not always effective. Vaccinations are not effective if hygiene is poor. Vaccinations give individuals the flu with full symptoms. Vaccinations work only when provided at the onset of the disease.

Minute vessels that collect blood from the capillaries and join to form veins are: venoles venules viscera venoids

Which of the following is an argument against buying local fruits and vegetables?

What is the function of reverse transcriptase in retroviruses? a) it uses viral rna as a template for dna synthesis.b) it converts host cell rna into viral dna.c) it translates viral rna into proteins.d) it uses viral rna as a template for making complementary rna strands.